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NFC: disallow comparison of AtomicOrdering

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Follow-up to D18775 and related clang change. AtomicOrdering is a lattice, 'stronger' is the right thing to do, direct comparison is fraught with peril.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265685 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
JF Bastien 2016-04-07 15:50:05 +00:00
parent d04d5a974e
commit fb9ead0bd9
1 changed files with 5 additions and 0 deletions
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5
include/llvm/IR/Instructions.h
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@ -53,6 +53,11 @@ enum class AtomicOrdering {
SequentiallyConsistent = 7
};
bool operator<(AtomicOrdering, AtomicOrdering) = delete;
bool operator>(AtomicOrdering, AtomicOrdering) = delete;
bool operator<=(AtomicOrdering, AtomicOrdering) = delete;
bool operator>=(AtomicOrdering, AtomicOrdering) = delete;
/// String used by LLVM IR to represent atomic ordering.
static inline const char *toIRString(AtomicOrdering ao) {
static const char *names[8] = {"not_atomic", "unordered", "monotonic",